An experimental study of EMI reduction of DC-DC converter with frequency hopping technique

Hai Au Huynh, Soyeon Joo, Soyoung Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

In this paper, the EMI problem of the DC-DC converter is discussed. The power spectrums of the DC-DC converter's nodes are analyzed and the noise scanner method is used to prove that the switching node of the DC-DC converter is the dominant source of EMI. To reduce EMI of DC-DC converters, frequency hopping technique can be applied. The DC-DC converter with frequency hopping technique is fabricated using 180nm CMOS process. The test chip results by IC-stripline and noise scanner methods show a significant improvement in EMI. The EMI reduction amount is 6.87 dB at fundamental switching frequency by applying the frequency hopping technique with IC-stripline measurement.

Original languageEnglish
Title of host publication2016 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages107-109
Number of pages3
ISBN (Electronic)9781509061846
DOIs
StatePublished - 5 Apr 2017
Event2016 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2016 - Honolulu, United States
Duration: 14 Dec 201616 Dec 2016

Publication series

Name2016 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2016

Conference

Conference2016 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2016
Country/TerritoryUnited States
CityHonolulu
Period14/12/1616/12/16

Keywords

  • DC-DC converter
  • EMI
  • EMI reduction
  • Frequency Hopping

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